[Hous68]

I'm trying to find the API that the developer program "Quartz Debug" uses to find all allocated window information. I haven't been able to find much info from Apple's developer site and was hoping someone here would have some insight.

Thanks.

[aleph_null]

Haven't looked into it myself, but I typed this at the command line:

<BLOCKQUOTE><font size="1"face="Geneva, Verdana, Arial">code:</font><HR><pre><font size=1 face=courier>
nm /System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreGraphics.framework/CoreGraphics | grep Window | more
</font>[/code]

And found some things which might be of help.

Try man nm for more info about it.

Let us know what you come up with.

[benh57]

Looks like the function is definitely CGSetDebugOptions. you can see it using:
<BLOCKQUOTE><font size="1"face="Geneva, Verdana, Arial">code:</font><HR><pre><font size=1 face=courier>
nm /Developer/Applications/QuartzDebug.app/Contents/MacOS/Quartz\ Debug
</font>[/code]

If you want some fun, just put:

CGSetDebugOptions(); in a Cocoa app and run it. I reccomend shutting down all your apps first, because after some weird red and green stuff draws on the screen, the window server crashes. Heh.

Need to figure out the arguments. Judging by the colors and crash, there are some other debug options.. perhaps buggy ones...

[Hous68]

So, from this, I'm guessing the the CoreGraphics API isn't documented and I'll have to guess at the parameters and return types? Yikes.

[Angus_D]

The Quartz Compositing / CoreGraphics Services API (the windowserver API, in other words) is not public, is not documented, and is not there for third parties to use. You can figure it out with some guesswork and a knowledge of assembly (you can disassemble the CoreGraphics library with otool), but it's not easy and it's likely to change without warning.

[benh57]

Originally posted by Hous68:
<STRONG>So, from this, I'm guessing the the CoreGraphics API isn't documented and I'll have to guess at the parameters and return types? Yikes.</STRONG>

Um, for private, udocumented functions yes. The function you asked for is private. The fact that we can hack and call it is just a cool side effect of the way OS X works.

Quartz is the marketing name for Core Graphics. It is documented, among other places, at http://developer.apple.com/techpubs/.../quartz2d.html

-Ben

[Angus_D]

Originally posted by benh57:
<STRONG>Quartz is the marketing name for Core Graphics. It is documented, among other places, at http://developer.apple.com/techpubs/macosx/CoreTechnologies/graphics/Quartz2D/quart z2d.html</STRONG>

Well... That documentation is just for the public side of Quartz, Quartz 2D (AKA CoreGraphics Rendering). The WindowServer API, AKA Quartz Compositing, AKA CoreGraphics Services is not public and not documented.